Levin,Richard I. <br/><br/>
Quantitative approaces to management. 

 - 7th  ed. 
 - New york :  McGraw-hill,  1989. 
 - 848  p. :  ill ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>opeation research.